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I will integrate mqtt systems with python fastapi and rest apis
Jose G.
About this gig
Need help connecting MQTT devices or services to a Python backend or REST API?
I can build, fix, and integrate MQTT-based systems using Python, FastAPI, REST APIs, databases, and Docker.
I can help with use cases such as:
- MQTT publish / subscribe integrations
- Connecting devices, gateways, brokers, and backend services
- MQTT REST API bridges
- MQTT PostgreSQL / database pipelines
- FastAPI endpoints for IoT data
- JSON payload parsing, validation, and transformation
- Topic structure and message routing
- Reconnection and error-handling logic
- Logging and basic monitoring
- Dockerized MQTT backend services
- Debugging existing MQTT integrations
My focus is on the software and backend side of IoT systems.
I do not provide PCB design or embedded hardware development as part of this Gig.
Before ordering, please send me:
your current MQTT setup, broker/device information, example topics or payloads, and what you want the data to do after it is received.
For multiple brokers, complex device fleets, or larger existing platforms, please contact me first so I can review the scope.
Get to know Jose G.
Jose G.
Python Backend and API Integration Developer
- FromSpain
- Member sinceAug 2026
Languages
Spanish, English, French
I develop reliable Python backends, REST APIs, and system integrations.
I work mainly with Python, FastAPI, PostgreSQL, Docker, Linux, MQTT, and third-party API integrations. I also have experience with Computer Vision using YOLO and OpenCV, real-time data processing, and technical dashboards.
I can help you build APIs, connect external services, automate data flows, dockerize applications, integrate databases, and improve existing Python systems.
My approach is simple: understand the problem first, keep the architecture practical, and deliver clean, tested, and documented software.
My Portfolio
FAQ
Can you connect MQTT data to a REST API or FastAPI backend?
Yes. I can build integrations where MQTT messages are received, processed, validated, and exposed or forwarded through REST API endpoints.
Can you store MQTT data in a database?
Yes. I can integrate MQTT data with databases such as PostgreSQL and design the required data flow for storing and retrieving messages.
Can you work with an existing MQTT broker?
Yes. I can integrate with an existing broker and work with your current topics, payloads, authentication, and application architecture.
Can you fix an existing MQTT integration that is not working correctly?
Yes. I can troubleshoot connectivity, publish/subscribe behavior, payload handling, reconnections, application logic, and related backend issues.
Do you develop ESP32, Arduino, or device firmware?
This Gig is focused on MQTT backend and software integration. If your device already publishes or receives MQTT messages, I can integrate it with the rest of your system. Firmware development is not included by default.
Can you integrate multiple devices or MQTT brokers?
Yes, but complexity varies significantly. Please contact me first with the number of devices/brokers and expected data flows so I can confirm the scope.
What should I send you before ordering?
Please send your broker details or type, example MQTT topics and payloads, current architecture, desired output, and any relevant errors or logs.
